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ERROR_CLUSTER_DATABASE_SEQMISMATCH
ERROR_CLUSTER_DATABASE_SEQMISMATCH occurs when a joining node and the locker node disagree about the cluster database sequence. The database may have changed while the join was in progress, or the node may have stale cluster state.
What to check
- Avoid retrying joins simultaneously from multiple nodes.
- Confirm that all surviving nodes have stable membership and that no configuration operation is in progress.
- Review the joining node for old cluster membership data, then follow the supported cleanup and rejoin procedure if needed.
Important: Do not manually copy cluster database files between nodes.
Get-ClusterNode
Get-ClusterLog -UseLocalTime -Destination C:\Temp
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